> It seems there is a function ?tt? in R which can help to find this
> function and integrate it in my Cox model.
> I am searching a good tutorial (or book reference) with example(s) to
> understand and apply the function ?tt? in R;
There is a vignette describing the tt function. Due to an overs
Hye,
I am writing to request your help.
I am working on survival curve analysis with Cox model (cox.zph). After to test
the proportionality condition for each covariant (independence to the time),
the time effect is very significant and I must adapt my model, by the addition
of a function dep
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